Tire tread



FIG. 1 is a perspective view of a tire tread, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is an enlarged partial front view thereof.

The broken line showing of the sidewall, inner bead and the peripheral boundary between the tire tread and the sidewall is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a tire tread, as shown and described. 